diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2015-04-02 20:33:53 -0500 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2015-04-02 20:33:53 -0500 |
| commit | a3b3c5627c8301ac850962b04f645dfab81e6a60 (patch) | |
| tree | afbb66cbfc7cdf454c729cf00b1e5e57acca9b93 /fs/namespace.c | |
| parent | e42391cd048809d903291d07f86ed3934ce138e9 (diff) | |
| download | linux-a3b3c5627c8301ac850962b04f645dfab81e6a60.tar.gz linux-a3b3c5627c8301ac850962b04f645dfab81e6a60.tar.bz2 linux-a3b3c5627c8301ac850962b04f645dfab81e6a60.zip | |
mnt: Use hlist_move_list in namespace_unlock
Small cleanup to make the code more readable and maintainable.
Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 82ef1405260e..e1ee57206eef 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1298,17 +1298,15 @@ static HLIST_HEAD(unmounted); /* protected by namespace_sem */ static void namespace_unlock(void) { - struct hlist_head head = unmounted; + struct hlist_head head; - if (likely(hlist_empty(&head))) { - up_write(&namespace_sem); - return; - } + hlist_move_list(&unmounted, &head); - head.first->pprev = &head.first; - INIT_HLIST_HEAD(&unmounted); up_write(&namespace_sem); + if (likely(hlist_empty(&head))) + return; + synchronize_rcu(); group_pin_kill(&head); |